Enum CompressionScheme 

#[repr(u8)]
pub enum CompressionScheme {
    None = 0,
    LZ4 = 1,
    ByteGrouping4LZ4 = 2,
    Auto = 99,
}

Dis-allow the value of ascii capital letters as valid CompressionScheme, 65-90

Variants

None = 0

LZ4 = 1

ByteGrouping4LZ4 = 2

Auto = 99

Implementations

impl CompressionScheme

pub fn resolve_for_data(&self, data: &[u8]) -> Self

Resolves Auto to a concrete scheme by analyzing the data.

pub fn compress_from_slice<'a>(&self, data: &'a [u8]) -> Result<Cow<'a, [u8]>>

pub fn decompress_from_slice<'a>(&self, data: &'a [u8]) -> Result<Cow<'a, [u8]>>

pub fn decompress_from_reader<R: Read, W: Write>( &self, reader: &mut R, writer: &mut W, ) -> Result<u64>

pub fn choose_from_data(data: &[u8]) -> Self

Chooses the compression scheme based on a KL-divergence heuristic.

Trait Implementations

impl Clone for CompressionScheme

fn clone(&self) -> CompressionScheme

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CompressionScheme

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CompressionScheme

fn default() -> CompressionScheme

Returns the “default value” for a type.

impl Display for CompressionScheme

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<&CompressionScheme> for &'static str

fn from(value: &CompressionScheme) -> Self

Converts to this type from the input type.

impl From<CompressionScheme> for &'static str

fn from(value: CompressionScheme) -> Self

Converts to this type from the input type.

impl FromStr for CompressionScheme

type Err = CoreError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for CompressionScheme

fn eq(&self, other: &CompressionScheme) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<u8> for CompressionScheme

type Error = CoreError

The type returned in the event of a conversion error.

fn try_from(value: u8) -> Result<Self>

Performs the conversion.

impl Copy for CompressionScheme

impl Eq for CompressionScheme

impl StructuralPartialEq for CompressionScheme